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F. P. MANSBEQIDEL. MOTOR DEVICE.

APPLICATION FILED NOV. 3. mamzuawzn MAR. 25.1922.

. 1,433,5 2 Patented Oct. 31, 1922.

.5172 1 Iva/255cm clez.

- INVENTOR' I svfiiw A1TORNEY Patented Qct. 31, 1922.

UNITED STATES minim OFFICE.

FRITZ P. MANSBENDEL, OF BROOKLYN, NEW YORK, ASS IGNOR, BY MESNE ASSIGN-MENTS, TO MARGUERITE V. OLEARY, OF MONTREAL, CANADA.

MOTOR DEVICE.

Application filed November 3, 1916, Serial No. 129,406; Renewed March25, 1922. Serial No. 546,888.

larly to its embodiment .in a motor device.

it has for its object means whereby comparatively slow rotation may bedirectly effected without the gearing, if desired, such mechanism beinguse of intermediate demanded largely, for example, in connec-- tion withadvertising devices. A further object of the invention is a device ofthis character which shall be suitable for use with either direct oralternating current, and be simple and dependable in its operation.

The nature of the invention will be best understood when describedinconnection with the Wli -I ch Fig. l is a plan of mechanism embodyingthe invention.

Fig. 2 is a front elevation thereof.

Fig. 3 is a section taken on the line-3 3, Fig. 1..

Similar characters of reference designate corresponding parts throughoutthe several views.

Referring to the drawings, 10 designates a suitable base plate uponwhich the various members may be mounted andv having standards 11extending upwardly therefrom to accompanying drawings, in-

support the cross-bar 12 which affords a hearing l3 for a shaft 14disposed perpendicularly to the said base 10 and in which its one end isjournaled. Upon the shaft 14; is

mounted a wheel 15 of comparatively large rectly support mechanism to berotated, suitable changes within the skill of the ordinary mechanicmerely being necessary. This feature, however, forms no part of thepresent invention whose object is to effect a comparatively slow andcontinuous rotation of the shaft 14-. and attached wheel 15.

To this end, there is placed in said circumferential groove 16, toextend over a predetermined portion of the same, a flexible \VilG bandor. cord 20, one end of which is secured to a spring 21 attached to thebase 10, and the other secured to a nut 22. The said nut 22 is carriedby the armature 23 of an electromagnet 24 which is designed to beenergized in any suitable manner, for example, from a battery 25; andthe armature is caused to have a predetermined oscillation or vibration,controlled by a suitable make and break device 26, as well understood.Armature 23 is pivoted or fulcrumed to a stftable support 27, and an arm28 extending beyond said point of support has attached thereto aretractile spring 29 secured, also, to the base 10 for the purpose ofrestoring-the armature 23 to normal position whenthe magnets aredeenergized. The nut 22, to which the one end of cord 20 is attached, isarranged to be longitudinally adjustable along said armature as by meansof a threaded shaft 80 upon which it is mounted, said shaft beingmounted to be rotatable in bearings 81 of said armature, and having ahead or knob 32 for actuation. In

this. manner, the effective amplitude of vibration of the said cord maybe varied to accordingly alter the speed of rotation of wheel 15, whichrotation is effected as foll0ws:-

Due to the attraction by the magnets of armature 23, the cord 20 iscaused to exert a substantial pull tangentially upon the circumferenceof disk or wheel 15, the tension of spring 21 being so adjusted that thearmature pull is considerably in excess. The friction between the cordand its groove will transmit the pull to the wheel, causing the same torotate (counter-clockwise) in the direction of the arrow, Fig. 1; andwhen the said armature is released and restored to its normal positionunder action of spring 29, the slack in cord 20 produced thereby will betaken up by the spring 21 without appreciable action on the wheel.\Vhereupon, further rotary impulses will be imparted to said disk orwheel upon the circuit being again completed and the magnets energized.Successive impulses will continue so long as sufficient current issupplied to the magnets and the wheel 15 continues to rotate, itsmomentum serving to overcome any tendency of the spring 21 to retard itsmotion by a reversal of the rotational impulse.

I claim:

1. A motor device, comprising: arotatable shaft; a circular disk mountedthereon provided with a circumferential groove; a cord occupying aportion of said groove; a spring attached to one end of said cord; apivoted member attached to the otherend of said cord; means to oscillatesaid member, the latter being adapted to exert a pull on said cord inexcess of that exerted by said spring and thereby effect continuousrotation of said shaft; and meansto adjust the point of attachment ofsaid cord end to the oscillatory member.

2. A motor device, comprising: a rotatable shaft; a circular diskmounted thereon provided with a circumferential groove; a cord occupyinga portion of said groove; a spring attached to one end of said cord; apivoted member connected with the other end of said cord; means tooscillate said member, the latter being adapted to exert a pull. on saidcord in excess of that exerted by said spring and thereby effectcontinuous rotation of said shaft; a threaded shaft mounted for rotationon said oscillatory member; and a nut longitudinally adjustable thereonupon rotation of said shaft to which the other end of said cord isattached.

3, A motor comprising a rotatable shaft, a disk mounted thereon, atransmission member in frictional engagement with said disk, a springattached to one'end of said transmission member, a pivoted vibratorydevice mounted eccentric to said disk and attached.

to the other end of said transmission member with a free portion of saidmember between the device and the disk, power means to cause said deviceto draw the transmission member tightly and quickly into engagement withsaid disk and in a rotativedirection toward said device, and a springoperating on said pivoted device to cause said pivoted device to quicklyrelease the pull on said transmission member when the power means actingon said vibratory device isin active, whereby said disk is continuouslyrotated in one direction.

4. In a motor of the character specified the combination of a pivotedvibratory member, a rotatable disk mounted eccentric to the pivot of thevibrating member, a transmission band connected at substantially rightangles to said vibratory member and partly encircling said disk, powermeans to vibrate the member at high speed to pull the band tightlyaround the disk on the forward stroke, a spring on the free end of saidband, and a spring connected with said vibratory member whereby saidvibratory member may snap back quickly to substantially free the saidband from the said disk during the return stroke, whereby said disk iscontinuously rotated in one direction 5. A motor of the characterspecified comprising a rotary disk, a transmission band encircling aportion of said disk, a vibratory member, an attachment device carriedby said vibratory member and to which said transmission band isconnected at one end, a pivot for said vibratory member, and thumb screwmeans for operating said device to move same toward or from said pivotthereby increasing or decreasing the effective pull on the band.

6. A motor of the character described comprising a rotating disk, aflexible transmission member in engagement with said disk, a spring onone end of said member, a vibrating actuator mounted upon a pivoteccentrically to said disk, said flexible member being connected to theactuator and having a free stretched portion between the actuator andthe disk, a spring connected with the actuator to cause said actuator toquickly react to release tension on the said flexible member on thereturn stroke of the actuator, and means for rapidly vibrating thevibratory member to intermittently increase and decrease the tension onthe flexible member, whereby said disk is continuously rotated in onedirection.

7. A motor of the character specified com prising in combination arotatable shaft,--a driving disk fixedly mounted thereon, aflexibletransmission member encircling a portion of said disk, a pivotedvibratory device mounted eccentric to the axis of said disk, and meansto vibrate said device with quick short strokes effective to causecontinuous rotary movement of the shaft.

Signed at New York in the county of New York and State of New York this1st day ofNovember, A. D. 1916.

FRITZ P. MANSBENDEL.

